On Friday, November 04, 2011, Greg KH wrote: > On Thu, Nov 03, 2011 at 11:47:34PM +0100, Rafael J. Wysocki wrote: > > On Thursday, November 03, 2011, Alan Stern wrote: > > > Originally, the runtime PM core would send an idle notification > > > whenever a suspend attempt failed. The idle callback routine could > > > then schedule a delayed suspend for some time later. > > > > > > However this behavior was changed by commit > > > f71648d73c1650b8b4aceb3856bebbde6daa3b86 (PM / Runtime: Remove idle > > > notification after failing suspend). No notifications were sent, and > > > there was no clear mechanism to retry failed suspends. > > > > > > This caused problems for the usbhid driver, because it fails > > > autosuspend attempts as long as a key is being held down. A companion > > > patch changes the PM core's behavior, but we also need to change the > > > USB core. In particular, this patch (as1493) updates the device's > > > last_busy time when an autosuspend fails, so that the PM core will > > > retry the autosuspend in the future when the delay time expires > > > again. > > > > > > Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > > > Tested-by: Henrik Rydberg <rydberg@xxxxxxxxxxx> > > > CC: <stable@xxxxxxxxxx> > > > > Greg, are you going to take this one or do you want me to do that? > > oops, as you took patch 1/2, might as well take this one as well: > Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxx> OK, I will, thanks! Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
